28746503 has 2 divisors, whose sum is σ = 28746504. Its totient is φ = 28746502.

The previous prime is 28746499. The next prime is 28746533. The reversal of 28746503 is 30564782.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28746503 - 2² = 28746499 is a prime.

It is a super-2 number, since 2×28746503² = 1652722869458018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28746533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14373251 + 14373252.

It is an arithmetic number, because the mean of its divisors is an integer number (14373252).

Almost surely, 2^28746503 is an apocalyptic number.

28746503 is a deficient number, since it is larger than the sum of its proper divisors (1).

28746503 is an equidigital number, since it uses as much as digits as its factorization.

28746503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 28746503 is about 5361.5765405336. The cubic root of 28746503 is about 306.3338624699. Note that the first 3 decimals are identical.

It can be divided in two parts, 287 and 46503, that multiplied together give a triangular number (13346361 = T₅₁₆₆).

The spelling of 28746503 in words is "twenty-eight million, seven hundred forty-six thousand, five hundred three".